Photocathode
n. 光电阴极
🗣️ 情景例句
One is as old as one's heart.
心多老人多老。
No. Don't be silly. I wouldn't dream of letting you do that.
不，别说傻话了。我绝不会想到让你那样做的。
Gandhi was much more than a clever lawyer, a fine speaker, a determined fighter for human rights and a political leader.
甘地远不只是一位聪明的律师，优秀的演说家，坚定的人权战士与政治领导人。